Course

Cortical subarachnoid hemorrhage (cSAH) — thunderclap vs focal symptoms, CT/MRI clues, and workup (Advanced)

Advanced course: bleeding on the brain surface (cortical SAH) can present with sudden headache or focal deficits. Learn how CT/MRI detect it, why cause-finding matters, and how it differs from aneurysmal SAH patterns

FoundationsCaregiver, SurvivorAdvanced50 minPlain (6–8)

Educational only

Educational only — not medical advice.

What you'll learn

  • Understand what cortical SAH is (surface bleeding)
  • Recognize symptom patterns and why it’s an emergency
  • Understand CT vs MRI roles in detecting small surface blood
  • Know why clinicians look for causes and what imaging tests may follow

Practice check

Check your understanding

A few untimed questions. Pick an answer to see instant feedback, then continue to the next lesson.

0 of 3 answered

Question 1

1. Subarachnoid bleeding is an emergency and is often first evaluated with CT.

Question 2

2. MRI can help because it…

Question 3

3. A key question is…